*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html{
    font-size: 100px;
}
body{
    font-size: 16px;
}
img{
    display: block;
    width: 100%;
    height: 100%;
}
.box{
    width: 100vw;
    max-width: 768px;
    margin: 0 auto;
    box-sizing: border-box;
    border: 1px solid red;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    .item{
        width: calc((100% - 2px) / 5);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        >div{
            display: flex;
            justify-content: center;
            align-items: center;
            &:nth-child(1){
                width: 80%;
                height: calc(20vw * 80%);
            }
            &:nth-child(2){
                height: calc(20vw * 20%);
                font-size: 0.14rem;
            }
        }
    }
}